Complex classes like AbstractListView often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use AbstractListView, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 19 | abstract class AbstractListView |
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| 20 | { |
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| 21 | /** @var string Module name. */ |
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| 22 | protected $moduleName; |
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| 23 | |||
| 24 | /** @var string[] Column fields */ |
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| 25 | protected $fields = []; |
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| 26 | |||
| 27 | /** @var array Records list from api. */ |
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| 28 | protected $recordsList = []; |
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| 29 | |||
| 30 | /** @var int Current page. */ |
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| 31 | private $page = 1; |
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| 32 | |||
| 33 | /** @var int The number of items on the page. */ |
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| 34 | protected $limit = 0; |
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| 35 | |||
| 36 | /** @var int Offset. */ |
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| 37 | protected $offset = 0; |
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| 38 | |||
| 39 | /** @var string Sorting direction. */ |
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| 40 | protected $order; |
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| 41 | |||
| 42 | /** @var string Sets the ORDER BY part of the query record list. */ |
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| 43 | protected $orderField; |
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| 44 | |||
| 45 | /** @var array Conditions. */ |
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| 46 | protected $conditions = []; |
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| 47 | |||
| 48 | /** @var bool Use raw data. */ |
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| 49 | protected $rawData = false; |
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| 50 | |||
| 51 | /** @var string Action name */ |
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| 52 | protected $actionName = 'RecordsList'; |
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| 53 | |||
| 54 | /** @var array Custom views */ |
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| 55 | protected $customViews; |
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| 56 | |||
| 57 | /** @var int Custom view ID */ |
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| 58 | protected $cvId; |
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| 59 | |||
| 60 | /** |
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| 61 | * Get instance. |
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| 62 | * |
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| 63 | * @param string $moduleName |
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| 64 | * @param string $viewName |
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| 65 | * |
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| 66 | * @return self |
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| 67 | */ |
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| 68 | public static function getInstance(string $moduleName, string $viewName = 'ListView'): self |
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| 69 | { |
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| 70 | $handlerModule = \App\Loader::getModuleClassName($moduleName, 'Model', $viewName); |
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| 71 | $self = new $handlerModule(); |
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| 72 | $self->moduleName = $moduleName; |
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| 73 | $self->limit = \App\Config::$itemsPrePage ?: 15; |
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| 74 | return $self; |
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| 75 | } |
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| 76 | |||
| 77 | /** |
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| 78 | * Function to get the Module Model. |
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| 79 | * |
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| 80 | * @return string |
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| 81 | */ |
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| 82 | public function getModuleName(): string |
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| 83 | { |
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| 84 | return $this->moduleName; |
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| 85 | } |
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| 86 | |||
| 87 | /** |
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| 88 | * Function to set raw data. |
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| 89 | * |
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| 90 | * @param bool $rawData |
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| 91 | * |
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| 92 | * @return self |
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| 93 | */ |
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| 94 | public function setRawData(bool $rawData): self |
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| 95 | { |
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| 96 | $this->rawData = $rawData; |
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| 97 | return $this; |
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| 98 | } |
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| 99 | |||
| 100 | /** |
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| 101 | * Set custom fields. |
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| 102 | * |
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| 103 | * @param array $fields |
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| 104 | * |
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| 105 | * @return self |
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| 106 | */ |
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| 107 | public function setFields(array $fields): self |
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| 108 | { |
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| 109 | $this->fields = $fields; |
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| 110 | return $this; |
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| 111 | } |
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| 112 | |||
| 113 | /** |
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| 114 | * Set limit. |
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| 115 | * |
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| 116 | * @param int $limit |
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| 117 | * |
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| 118 | * @return self |
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| 119 | */ |
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| 120 | public function setLimit(int $limit): self |
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| 121 | { |
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| 122 | $this->limit = $limit; |
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| 123 | return $this; |
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| 124 | } |
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| 125 | |||
| 126 | /** |
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| 127 | * Set offset. |
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| 128 | * |
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| 129 | * @param int $offset |
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| 130 | * |
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| 131 | * @return self |
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| 132 | */ |
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| 133 | public function setOffset(int $offset): self |
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| 134 | { |
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| 135 | $this->offset = $offset; |
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| 136 | return $this; |
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| 137 | } |
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| 138 | |||
| 139 | /** |
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| 140 | * Set order. |
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| 141 | * |
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| 142 | * @param string $field |
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| 143 | * @param string $direction |
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| 144 | * |
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| 145 | * @return self |
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| 146 | */ |
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| 147 | public function setOrder(string $field, string $direction): self |
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| 148 | { |
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| 149 | $this->orderField = $field; |
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| 150 | $this->order = $direction; |
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| 151 | return $this; |
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| 152 | } |
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| 153 | |||
| 154 | /** |
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| 155 | * Set conditions. |
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| 156 | * |
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| 157 | * @param array $conditions |
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| 158 | * |
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| 159 | * @return void |
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| 160 | */ |
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| 161 | public function setConditions(array $conditions) |
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| 162 | { |
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| 163 | $this->conditions = $conditions; |
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| 164 | } |
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| 165 | |||
| 166 | /** |
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| 167 | * Set custom view ID. |
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| 168 | * |
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| 169 | * @param int $cvId |
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| 170 | * |
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| 171 | * @return $this |
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| 172 | */ |
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| 173 | public function setCvId(int $cvId): self |
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| 174 | { |
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| 175 | $this->cvId = $cvId; |
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| 176 | return $this; |
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| 177 | } |
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| 178 | |||
| 179 | /** |
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| 180 | * Load a list of records from the API. |
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| 181 | * |
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| 182 | * @return self |
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| 183 | */ |
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| 184 | public function loadRecordsList(): self |
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| 185 | { |
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| 186 | $this->recordsList = $this->getFromApi($this->getApiHeaders()); |
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| 187 | return $this; |
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| 188 | } |
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| 189 | |||
| 190 | /** |
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| 191 | * Gets headers for api. |
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| 192 | * |
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| 193 | * @return array |
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| 194 | */ |
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| 195 | public function getApiHeaders(): array |
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| 196 | { |
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| 197 | $headers = [ |
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| 198 | 'x-row-count' => 1, |
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| 199 | 'x-row-limit' => $this->limit, |
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| 200 | 'x-row-offset' => $this->offset, |
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| 201 | ]; |
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| 202 | if (!empty($this->fields)) { |
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| 203 | $headers['x-fields'] = \App\Json::encode($this->fields); |
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| 204 | } |
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| 205 | if (!empty($this->conditions)) { |
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| 206 | $headers['x-condition'] = \App\Json::encode($this->conditions); |
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| 207 | } |
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| 208 | if ($this->rawData) { |
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| 209 | $headers['x-raw-data'] = 1; |
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| 210 | } |
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| 211 | if (!empty($this->order) && $this->orderField) { |
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| 212 | $headers['x-order-by'] = \App\Json::encode([$this->orderField => $this->order]); |
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| 213 | } |
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| 214 | if ($cvId = $this->getDefaultCustomView()) { |
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| 215 | $headers['x-cv-id'] = $cvId; |
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| 216 | } |
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| 217 | return $headers; |
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| 218 | } |
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| 219 | |||
| 220 | /** |
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| 221 | * Get data from api. |
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| 222 | * |
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| 223 | * @param array $headers |
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| 224 | * |
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| 225 | * @return array |
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| 226 | */ |
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| 227 | protected function getFromApi(array $headers): array |
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| 233 | |||
| 234 | /** |
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| 235 | * Get records list model. |
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| 236 | * |
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| 237 | * @return Record[] |
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| 238 | */ |
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| 239 | public function getRecordsListModel(): array |
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| 240 | { |
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| 241 | $recordsModel = []; |
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| 242 | if (!empty($this->recordsList['records'])) { |
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| 243 | foreach ($this->recordsList['records'] as $id => $value) { |
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| 244 | $recordModel = Record::getInstance($this->getModuleName()); |
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| 258 | |||
| 259 | /** |
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| 260 | * Get headers of list. |
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| 261 | * |
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| 262 | * @return array |
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| 263 | */ |
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| 264 | public function getHeaders(): array |
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| 275 | |||
| 276 | /** |
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| 277 | * Gets custom views. |
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| 278 | * |
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| 279 | * @return array |
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| 280 | */ |
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| 281 | public function getCustomViews(): array |
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| 293 | |||
| 294 | /** |
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| 295 | * Get default custom view ID. |
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| 296 | * |
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| 297 | * @return int|null |
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| 298 | */ |
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| 299 | public function getDefaultCustomView(): ?int |
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| 311 | |||
| 312 | /** |
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| 313 | * Get all rows count. |
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| 314 | * |
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| 315 | * @return int |
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| 316 | */ |
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| 317 | public function getCount(): int |
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| 321 | |||
| 322 | /** |
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| 323 | * Get current page. |
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| 324 | * |
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| 325 | * @return int |
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| 326 | */ |
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| 327 | public function getPage(): int |
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| 334 | |||
| 335 | /** |
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| 336 | * Sets page number. |
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| 337 | * |
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| 338 | * @param int $page |
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| 339 | * |
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| 340 | * @return $this |
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| 341 | */ |
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| 342 | public function setPage(int $page) |
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| 347 | |||
| 348 | /** |
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| 349 | * Is there more pages. |
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| 350 | * |
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| 351 | * @return bool |
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| 352 | */ |
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| 353 | public function isMorePages(): bool |
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| 357 | } |
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| 358 |
This check compares the return type specified in the
@returnannotation of a function or method doc comment with the types returned by the function and raises an issue if they mismatch.